Transmission lock



Oct. 2 1923. 1,469,620

0. CARROLL TRANSMISSION LOCK Filed March 31 1 922 3 Sheets-Sheet 1 I lNVENT OR dyigw ATTORNEY WITNESEES Oct. 2 1923. 1,469,620

0. CARROLL TRANsMIssION LOOK INVENTOR- ATTORNEY WITNESSES Oct. 2, 1923. 1,469,620

I v v o. CARROLL I TRANSMIS S I ON LOCK Filed March 31. 1922 5 Sheets-Sheet? z -gnfi /&

"4/ A! '5' hm Z8 /9 2 p: z e 40 I 3.9.? 3 30, {4"

Z0 F 'yfl WITNESSES ATTORN EY g nte dfictzg J ie i i Be it known that LQRIANDO onset -1a citizen ofthe 'Uilited States, residing at specification; V V V i This invent-ion relates to. automobile locks;

Catonsvi11e,in the county" Ba1timofre and State of Maryland,w1mve "invented certain pew and useful Improvements n Trensmls'f and comprehenci's a1 constfuotio of means manipulation of h j coiiibinatio r leek,- the ombination being unknown to 7 everyone except the owner of the vjehlcie.

I One of thechi'e'f charh'cteristi-ts Qfthe veritlon resides 111 the provis onof means for] j auton1a-t cal1y return ng the gear shi'r't'lever from any' one ofits activeositions a;

gear shift positiones stated so that itican besubsequentlylocked" in this 'position' an easy manner- 6' fjl .The nature and adventages fo-f the l'iii yeri neutrai'position, viiicicient, to thei'r'eie'ase of,

the' heai'is for this -purpfose, Whicl'rdoesnot- 'in any Way; interfere With thefproper, shift ing of the gears during the operation of the mis'sion 'casingQWhich houses trensinission; j

'vehic'le, but is oii-ly'usefufin returniiig the tion WiHbe better understood when tii eqfoi'- the iiiventi'onfre'siding i'n' theeonstruetioh," comb nation, and "arrangement; f qlaimed. 1 1

section.

-; pr0Xima-te 1y On-'lih'e H V o-fFigere 8: Figuref'fi is anfencielevation-of the -"coop ereting mehihers which assist in turnin the lowing detailetl desc'riptionvis r aciin'con rn'ection' 'withthe" aec'ompeuyin drawings,

lIn the drewings formiiig jofthis' ap-'-' presentinvention, this ViQjV behig' partly in Figure 2 V proximately on line 2 201 F gure f Figure 3 is a seotiohal view teken vapproxi} V 'priortoiockingthem together, SlOIl'. Locks of Wh chfthe follow ng 1s a ing the" spring '9- 9.Qf'F guIeYA" i l j ,Fi'gure 'lO'is a'mgme mygv w taken at I "aiig'ht angle'to Figure'it i i Figure 1-1 ise-rperspectiveviet' s the spring pressedfmemb rs fWhic-h e156 es-$175 si'tio'n.

ufshap'ed membersf and? which meehanism 1 is- C01 ,trolled hythe I gear shift lever; IOQ" Mounted upozizthe' czis "ing A a casing 11 preferablyof elongated Q ;formati on"ii1 plan, and thisfcassing 11' 0011-.

tains themeehenism forming the subject 7 I 9O I phoetion, like" numeralsfof reference; ir dr cate similar parts inftheseVera1 VieWs,;a1icl sionmechanism' showing the-jzirrengeineut of the device; forming the 'subj e'ct j iria tte'r of the'-' seetilo nal'a-view take-tap;

ere deslgned to-operate "1n- Qualified-March31,192 Seri aiifiQS i SAQB; f

associated Segments.

tional' View through the segments showing i f the r'ei'a'tive positioning" of the seine'just;

' gear shift in 'afneutrel 'po'sitiom; endl their. Figure 6 1is an enlargedfregmeht'arysec Figure :71yis a setionel' vie'yv :throii ghithe; J

lockingtiof-the segments together. f I v 3F1gure'8 is af'some'whet similar VieWs'how-- one of sist in) returning the -le er "-ti af euti'aI', g

ces ing'shoiving the mea s0nm1tr11i g the 6 5 pressed key of the co-nihin'ztf tron lock and its rei zitivejpositioh o o'iieof' {F igure -12 is it er'spetiveviewheme er ating lever and its,as sooieted shgrftf V Figure is a"d etai1 vievvf'of0i1e of the v so 7 1' Referring to: the'drawinfgs 1 iii detail; arid particularly Figure 1 'A indiozitesfla; trans:

mechanism of a11 -ve11gknow1i construction;

matterl-o frthe-finVentio-m The easing 1'1 provided ith-e socket? 12 which aecommo-i Projectiri each side 14: oithis -has datesthe-105111 13of'the geer shiiiti lei er-l0," it

and thi'sjlever is extended througlfthe cas V ing- ;11 11 for-operative associet'ion f-with" the) I I .1:

ing are V spaced upper flahddower; -g1iiz1esi15,

ar dthesefguides tel'miiieteahiap pr ejciabie; Y distance e'way from the ger shift lever 1Q [as 'ijHustratedin' Figure 3.1 At eaohffsi'de of 4 this leverj is member of; the construction iIlu'stret'ed in Figure'll, and these members V 1 anne'rto be ;;i

- mg theggeaf-shifti lever-'f autometicailyg out 50f gear, and.which-membersfare'assisted by 7- other membe s'ato"he hereinefter;desoribed, V 7

"'tion;.;

presentlydesoribed for the purpos'e'bf' iiioy-L in returning-the "geeri to neutral p" E 'ai'c'h of the gmembersthat ".oijerete 1-11 the.

guides comprises a vertical bar 16which terminallysupports slides'jl'l i the latter .be- 'in'g ho'riz'ontallydisposed to operate in the guides15. Projecting centrally fromthe bar 16 is an arm 18-which supportsa-hori zontally disposed bar 19, the latter being of a length suflicient to permit the-gearshift lever to'be actuatedwithin the. limits of its movements without moving beyond the terbar 16 me pin 20 which is received by one. ....end..of a coiled spring 21, the opposite end E fthe pi'ing receivinga similarpin 22 pro- ;jec'ting inwardly from the adjacent wall 14 hold. the membersjust describednormally minals of this. bar. 19. Projecting. from the of the casing. These springs function to in the position illustrated in Figure 3,;wherein it will be noted'that the horizontally dis- 7 ,posed' bars .19 will; engage thegear shii't lever '10 .at the opposite sides thereof. gconsequently, when the shiit' le .ve'r is actuated to put the car in gear, one or the otherof these members is moved against the tens on of its spr1ng,.so.thatthe member will...subsequently operate to assist. in

automatically returning the gear shift lever to. normal position when it: is desiredto "lock the lever in. this position. 1 The guides 15 are provided with; stop flanges 23 which limit the movement of the slides 17 in one direction under the influenceof the springs 21. Now,..also arranged within the casing 11 are substantially U shaped members :of the construction illustratedin .Figure 13, and these members are arranged in advance and i larerarrange drto mesh with eachother as il- -.-lustrated in Figure 2- Carried by the other :oorresponding extremities 26 of these re spect ve members Q lare segmental members 28 and'29' respectively, These members are .formed 1 to provide substantially flat or straight faces-30 which-are arranged'in conitaetingengagement with each othenas illus trated in Figure '5, when the gear shift-lever isi'locked in a-ima-nner to'be hereinafter dei: scribed. These members 28and 29-are proyided with-teeth 32 which :mesh with: each ether; so that the members aresimultaneously moved-toward...and away fromieach other incident to the operation of the members -24. Surrounding theextremities'QS of these :membersand secured thereto are coiled spri-ngs 33 which when the members 24 are .arrangedin the-position illustrated in F igre- 4:. are placed under tension, this being the p'osition o:f these members, while i the Imr is in use. Theqgear shift. lever-10 is pro:

' vided withextensions 34 which are disposed; so that one or the other of these extensions engage one or the other "of themembers -24 to move the latter to the position illustrated in Figure 4, when "thelev'erldisshitted in r any direction to place the car-in gear. As the -segmental members 28"and 29 assume this position, they are held immovable in this position by means of' a substantiallyL shaped locking element 35 tulcrumed asjat "36 and having an offset extremity 37 tabs received within a notch 58 formed the segmental member 28. I I

The locking element s normally under the pressure of a spring 39 which has one end associated with a bracket 40 secured to the casing 11. Also rising from the locking element 35 is a plunger ro'd4-1 which passes. through the casing and provided witha head or the. like 42-...Surrounding the plunger rod between the. head 42 and the casing 11 is. a coiled spring'4l3whichoperates to nor- 'mallyhold the plunger elevated,'and also assists the spring 39' in holding the said locking element 35 in an. active position.

The operation otthe construction thus 2 V When the gear shift lever is operated in p far described is as follows:

the usual manner, to placethe car gear, the lever 1s*broi 1ght.1nto contactwith one or the other of the members 2a,.moving said member 24 against the tension of the spring associated therewith. Obviously, both of the members24t are moved in unison to their connection by the segmental members '28 r i and. 29,. and when these members assume the I position shown. in Figure 4:, they. areheld in this position by means of the locking element 35. Consequently, the gear shift lever ice" is free of movement sothat it can be utij lized in the usual manner without any interference on part of the members 24. In

addition to. the membersMQai being actuated i by" the gear jshift' lever as :just stated, the -members at the sides of the. gear shift lever v above described, and clearly illustrated in Figure 11; is also placed under. tension but these members are actuated independently of. each other depending of courseiupon 7' .which side of the longitudinalcenter of the transmission casing, the. lever is arranged when the car is inrgear These members just referred to which include the bars 19 cani not in themselves automatically return'the gear shift lever to a. IlGlltlflllPOSitlOD, as the lever must first bemovedeither forwardly or rearwardly, depending upon the way the car is geared by means of the membersfl l, before. the members includingthe bars 19 can operate for the purpose stated- Of course, when theileveris actuated by hand to move it out of gear, the members ar 1 rangedat'the sidesof the lever wi ll assist in movingthelever toits neutralfposition.

However inorder to lock the gear shift" lever in ajneutral ipositionfwithout touching;

the lever any way it is only necessary 1 j to depress the plunger; rod 41 which moves '7 It is for this purpose,-thatthemembers 24:

, jare-arrangedat the frontand rea ofthe;

the mannerjust-stated, onefofiithe inembers'j 'i vat the sides of thelever operatesto return; the; lever to its. neutral 'positionl ,LWhen vthe members 24 are" releasedfincident to thexpin, 51 within-the lockingelement 47,-a1lowj ingthesaid element to gravi'tate into o era. 7 .tive association with the keeperdd ul vhen lever. ,Then when the lever Eis shifted in.

depression, of the plunger 41', the segmental members -move into the position; illustrated 1in Figure5, whereinjthe faces'i Q'of the respective membersvcontact each other. These a members are then-lockedtogethengn a'man'-; 0

ner to be resently} described, $01 that the gear shift lever c annot thereafter he actuated' to place the cariin gear. It might be 1 stated that this: manner of returning the; gear shift leVerto neutral position without '25 one is detained. oriistopped by1ja= bandit, as, ,7 the driverneed only; depressfth'e plunger: Aland subsequently step'fupo'n the lever 44 to lock the gearshift lever in a-neutral position,'t hus preventing the bandit from making use of the vehicle;

In order to lock the segmentaljmembers 28 and 29.together for the purpose iust stated, g I provide the, member 28 witha' recess 4:5 in; which is piv0tedas at4=6 alocking element-7; 47, the latter having an ofiset extremity 48;I'

touching the ileverfisadvantageous, where adapted to engage the keeper 49 :which entersfltlle recess iaas the segmental members. are'brought together in the positionshown .in Figure 5. It is of course {understood that the keeper 49 is carried by the seg-v mental member 29- The locking element g 47 is normally under the pressure of a spring 50 which is arranged within the recess '45 and bearing againstthe locklng element.

However, it is not always. desirable tolock the members 28 and 29 together, as they assume the posit-ionillustrated inl igurej 5,v and for this purpose, I provide the locking element 47 with asp'ring pressedpin 51 a which is normally projected beyond one end of the locking element'to engage asto p'52, thus holding the locking element in an in- 1 active position as shown in Figure 6; .This

pin 51 is however, forcedwithin'the lock;

opens into the recess 45 when the segmen'f plunger 53. is ai'pin' 54' whichcooperates with an arm '55fixed on a wsliaft 56 with whi'ch the lever 44 fisfassociatedu Conse ing a cross sectional configuration similar to that of the adjacent extremity of theshaft' The key is normally j held separated, V 'i'irom' this-shaft through the instrumen't'ality ii I of a springlv which is positioned-in .:the j" I recess" 66 and surrounding the keyas illus} 1 tra-ted in Figu're 8.[Arrangedathe" out-*2 V i i sideoifthe casing is a graduated'diafl67, and v cooperating with these graduations isaf Vfinr ger 68 carried by the key, so that the combiez' ,nation can ybe: manipu1ated in meter ,known'manner in orderto lock, the segments 28 m ear sp cev ly: i a a i a,

lYhile itis believedlthat from the fore- ,goingfdescription, the" nature and advan 'j ff tagesof the invention will be readily aippar mg element 47, to allow the; said? element to engage the keeperet), by means ofa spring, pressed plunger 53fwhichslides in a bore formedrin the member 29, andv which bore.

duently, members '28v and .inoveff i totlie positionillustratedfin F igures; 5 fand f ,6, this arm 55 is,disposed fto engagethe pin 15,4, to hold therplung'er 53. retracted, thereby allowingthepin" 51V to assume the -pos i a 'tionillustrated.inFigure 6 for the purpose of holdingethe locking element in an inactive projected:underthe-infiuence the spring a 57 into' he; I'GCQSS 45, llhel ehy .mo i

nipulatin'g a. combination lock, the;- combi;

The combination supports a plurality oftumblers '62, within the recesset5 and. these tumblers arefformedw proj i ojns 63,s0sthat wheni the-tum;

the parts are thus locked together theyj; ican'not' be opened, {without successfully na- 7 nationfof which isionlyflknownto-the owner. j or v driver of ehicle The shai'ti56 is pro-j videdwith adjacent fiatsurfaces '58fandff59 e pe ctively, whichgsurtaces are 1 adapted to be alternately-engaged; by a leaf spring'fio, 1 soithattheshaft is heldgineither,ofQits ada justed positions. :It -is of courseunderstood, vthat thisshai't :is' onlyiturnedla qu'arterof evolution for the/purpose of, moving the arm Way from the inbgt,ormovingittof a posltlonto contact said pin for the purpose lock be of any suit-- i ableconstruction, including a shaft 61 which 1 blers: areturned' in- -gperjorder ,to bring the,.-pro jectio'ns 63 into axial; alinement,they

contact the locking element 4-7, thereby elevating'the'latter and separating it from its v keeper i9.' Thereiis on'eof these tumblers, 4 62 illustrated in Figure 6,. but as: above stated, a number of suchtumblers'areused, in well known comb nat onlock mechanisms;

this key being of hollow formation and'hav- V e H01 1 Theshaft 61 pro ects beyondthe side of the .1: S g l m r 28, and is actuatedbya key 64 whichslides through the casing 11, r 

